JP4890218B2 - Interstory structure of outer wall and its construction method - Google Patents

Description

  The present invention relates to a floor structure of an outer wall and a construction method thereof. More specifically, the present invention relates to an inter-story structure of an outer wall that is simplified in construction and a construction method thereof.

  Conventionally, from the viewpoint of improving the heat insulating performance of a house, the heat insulating material is filled between the outer wall and the inner wall in the house. Among the heat insulating materials that are filled between the outer wall panel and the inner wall, in a house to which the panel conversion method is applied, the setting is made on the outer wall panel at the factory to simplify the construction. .

  However, the filling of the heat insulating material is performed at the site in an interstory part (body difference part) such as between the first floor and the second floor. This construction is generally performed as follows.

  First, a heat insulating material is filled in the trunk difference part, then an interfloor draining member is set to cover the heat insulating material, and then the interfloor draining members are joined together by a joining member.

  Therefore, not only the construction is complicated, but also the construction period is prolonged and the construction cost is increased.

  The present invention has been made in view of the problems of the prior art, and it is an object of the present invention to provide a floor structure of an outer wall that can make filling of a heat insulating material at a construction site in a floor part unnecessary and a method for the construction thereof. Yes.

  The interstory structure of the outer wall of the present invention includes an interstory member that drains the interstices, a drainage member that is disposed below the interstory member, and a heat insulating material that insulates the interstices. The interstory structure of the outer wall, wherein the interstitial member includes a main body formed of a divided body formed by bending a plate, and a corner member formed by bending the plate, and the draining member includes a plate. A non-opening draining member formed by bending, and an opening draining member formed by bending a plate, wherein the heat insulating material is a fibrous heat insulating material and is set on the rear surface of the divided body. Features.

  In the inter-story structure of the outer wall according to the present invention, it is preferable that the divided body is provided with a clamping mechanism that clamps the lower end portion of the outer heat insulating material on the upper floor.

  In the floor structure of the outer wall according to the present invention, it is preferable that the divided body has a guide member that guides the penetration of the pipe that penetrates the floor part.

  Furthermore, in the floor structure of the outer wall according to the present invention, it is preferable that an inner seal member and / or an outer seal member be disposed at the outdoor end of the guide member.

  Furthermore, in the floor structure of the outer wall according to the present invention, the divided body includes an opening for the ventilation hood for mounting the ventilation hood and an indoor duct having an opening above the opening for the ventilation hood. Is preferred.

  Furthermore, in the floor structure of the outer wall of the present invention, the non-opening draining member has a surface that covers the upper end of the ventilation layer of the outer wall panel of the lower floor, and the surface is provided with a vent hole. Is preferred.

  Furthermore, in the inter-story structure of the outer wall of the present invention, the draining member for opening has an upstanding surface that stands up from the surface that is placed on the upper end of the ventilation layer of the outer wall panel of the lower floor, It is preferable that a dehumidifying hole is provided.

  Furthermore, in the floor structure of the outer wall of the present invention, it is preferable that the main body is formed by overlapping and joining the ends of the divided bodies.

  Furthermore, in the floor structure of the outer wall according to the present invention, it is preferable that a water stop material is disposed in a predetermined range on the rear surface of the divided body.

  Furthermore, in the floor structure of the outer wall according to the present invention, it is preferable that a water stop material is disposed in a predetermined range on the rear surface of the corner member.

On the other hand, the construction method of the interstitial structure of the outer wall according to the present invention includes an interstory member that drains the interstices, a drainer member disposed below the interstitial member, and heat insulation that insulates the interstitial parts. A method for constructing an interstitial structure of an outer wall comprising materials,
The division of the main body in which the fibrous heat insulating material is set on the back surface of the interstices on one side of the outer wall is set on the interstices while sequentially superposing the superposition direction of the end portions as a constant direction, and the overlapping Joining the mated ends; and
While separating the main body divided body in which the fibrous heat insulating material is set on the back surface on the back surface of the other surface intersecting with the one surface, the overlapping portions of the end portions are aligned in the predetermined direction, and then the floor portion. And a step of joining the overlapped end portions;
A step of superimposing and joining one end portion of the corner member to the end portion of the split body on the one surface, and joining the other end portion of the corner member to the end portion of the split body of the surface. It is characterized by including.

  In the construction method of the interstitial structure of the outer wall according to the present invention, the divided body has a receiving member for receiving the fibrous heat insulating material at the lower part of one end, and the center of the receiving member is made to coincide with the module core of the outer wall. Is preferably set.

  ADVANTAGE OF THE INVENTION According to this invention, the outstanding effect that the heat insulation of an interstory part can be achieved simultaneously with the division body which comprises the main body of the interstitial member in an interstitial part being set in an interstory part is acquired. Therefore, the construction cost can be reduced, and an excellent effect of shortening the construction period can be obtained.

  Hereinafter, although the present invention is explained based on an embodiment, referring to an accompanying drawing, the present invention is not limited only to this embodiment.

Embodiment 1
FIG. 1 is a perspective view showing a main part of an inter-story structure (hereinafter simply referred to as an inter-story structure) according to Embodiment 1 of the present invention.

  As shown in FIG. 1, the interstitial structure K includes an interstory member 10 that drains the interstitial part M, a draining member 20 that is disposed below the interstory member 10, and a fibrous heat insulating material 30. It is provided as a main component, and the fibrous heat insulating material 30 is previously disposed on the back surface of the interstory member 10 (the surface facing the room, the side surface of the room).

  Hereinafter, the floor structure K will be described with reference to FIGS.

  The interstory member 10 includes a main body 11 disposed in the interstitial part M between the outer wall panel P (PU) on the upper floor and the outer wall panel P (PS) on the lower floor, and a corner part of the interstitial part M. And a corner member 18 to be disposed. In addition, the code | symbol C in FIG. 4 shows a module core, D shows an outer-layer heat insulating material, E shows an outer wall surface material, F shows a ventilation trunk edge, G shows a secondary water stop gasket.

  The main body 11 is divided into a plurality of parts, that is, divided bodies (main body divided bodies) 12, and the end portions of the respective divided bodies 12 are sequentially overlapped and joined with the overlapping direction as a certain direction, for example, the counterclockwise direction. Thus, the main body 11 is formed. Thereby, the conventionally used joining member can be made unnecessary, and the number of parts can be reduced. In addition, the joint position between the main body divided bodies 12 and 12 is a position adjacent to the secondary water stop gasket G in the joint portion as illustrated.

  Specifically, the main body divided body 12 is formed by bending a horizontally long steel plate in the vertical direction, and includes a first vertical surface 12a disposed in a lower portion and a second vertical surface 12b disposed in an upper portion. And the inclined surface 12c formed between the two vertical surfaces, and the vertical dimension (height) is such that the fibrous heat insulating material 30 can be filled between the upper and lower flanges of the beam B in the interstitial part M. The level difference between the first vertical surface 12a and the second vertical surface 12b is adjusted between the lower end of the first vertical surface 12a and the outer insulation (board-like heat insulation) DS surface (outside surface) of the lower floor. The second vertical surface 12b is adjusted so as to come into contact with the outer heat insulating material (board-like heat insulating material) DU on the upper floor (inner side surface) with the upper end portion of the draining member 20 interposed therebetween. For this reason, the position of the inclined surface 12c is adjusted so that the inclined surface 12c is positioned below the outer heat insulating material DU on the upper floor in a state where the main body divided body 12 is attached.

  At the upper end of the surface (outside surface) of the first vertical surface 12a of the main body divided body 12, a clip 13 made of two spring materials, the clip portion 13a cooperates with the second vertical surface 12b and Attached at appropriate intervals so as to clip the lower end portion of the external heat insulating material DU. That is, the clip 13 and the second vertical surface 12b constitute a clamping mechanism.

  A strip-shaped heat insulating material holding material 14 for holding the fibrous heat insulating material 30 is attached to the center of the back surface (inner side surface) of the main body divided body 12 along the back surface. The upper end portion of the heat insulating material holding member 14 is raised in a bowl shape from the position corresponding to the lower side of the upper flange of the beam B toward the indoor side to form a bowl-shaped body 14a, and the lower end portion is the lower flange of the beam B From the position corresponding to the upper side of the frame, it is raised in a bowl shape toward the indoor side to form a bowl-shaped body 14b. Further, the tips of the hooks 14a and 14b are hooked claws 14c.

  In addition, the lower part of the back surface of the main body divided body 12 disposed across the module core C functions as a mark for determining the mark and the mounting height at the time of mounting, An L-shaped receiving member 15 for receiving the fibrous heat insulating material 30 is disposed.

  Moreover, the water stop which consists of synthetic resins (for example, EPDM) on the back surface of the side edge part of the main body division body 12U located on the upper side (outdoor side) in an overlapped state and the back surface of the portion where the draining member 20 is overlapped. The material is affixed, and the watertightness of the joint J of the main body divided bodies 12 and 12 is achieved (see FIG. 16).

  The corner member 18 is formed with a first vertical surface disposed at the lower portion, a second vertical surface disposed at the upper portion, and an inclined surface formed between the two vertical surfaces, similarly to the main body divided body 12. The steel plate is bent into an L shape, and is disposed so as to cover the end portions of the main body divided bodies 12 and 12 located at the corner portions of the interstitial portion M (see FIG. 17). A water stop material made of a synthetic resin is attached to the rear surface of the end portion of the corner member 18 that covers the end portion of the main body divided body 12 so that the joint between the main body divided body 12 and the corner member 18 is watertight.

  The draining member 20 includes a non-opening draining member 22 disposed in an interstitial portion M corresponding to the outer wall panel PS in which an opening such as a window is not formed, and an outer wall panel PS in which an opening such as a window is formed. The opening draining member 26 disposed in the corresponding interstitial part M is included. FIG. 5 is a perspective view of the non-opening draining member 22, and FIG. 6 is a perspective view of the opening draining member 26.

  As shown in FIG. 5 and FIGS. 7 to 9, the non-opening draining member 22 is formed by bending a horizontally long steel plate into a deformed stepped shape in the longitudinal direction, and is a first vertical surface disposed in the lower portion. 22a, a second vertical surface 22b disposed in the middle portion, a third vertical surface 22c disposed in the upper portion, and a first horizontal surface 22d disposed between the first vertical surface 22a and the second vertical surface 22b. And a second horizontal surface 22e disposed between the second vertical surface 22b and the third vertical surface 22c, and an appropriate number of first horizontal surfaces 22d covering the ventilation layer of the outer wall panel PS on the lower floor. A vent hole 23 is formed. When the outer wall panel P is manufactured, the non-opening draining member 22 is set at the upper end portion of the outer wall panel P in which an opening such as a window is not provided.

  The height of the third vertical surface 22c is such that the upper end of the third vertical surface 22c is located slightly below the upper end of the outer insulation DS on the lower floor, and the lower end of the third vertical surface 22c is It has been adjusted to protrude slightly. Positioning the upper end of the third vertical surface 2c slightly below the upper end of the outer thermal insulation DS on the lower floor avoids damage to the non-opening draining member 22 during the installation work of the outer wall panel P and ensures safety of the installation work. This is to ensure the sex.

  The width of the second horizontal surface 22e is adjusted to the minimum dimension that allows the water stop material 24 made of synthetic resin to be attached to the back surface of the second vertical surface 22b located at the ventilator edge F. The reason for adjusting the minimum dimension is to increase the total opening area of the ventilation holes 23 as much as possible to improve the ventilation performance.

  The height of the second vertical surface 22b is adjusted so that the end portion of the first horizontal surface 22c is placed on the upper end of the ventilator edge F of the outer wall panel P (PS). Moreover, the water stop material 24 which consists of synthetic resins (for example, EPDM) is affixed on the back surface of the location located in the ventilation trunk edge F of the 2nd vertical surface 22b, and is watertight.

  The width of the first horizontal surface 22d is adjusted so that the end of the first vertical surface 22a is sandwiched between the outer wall surface material E and the ventilator edge F.

  As shown in FIGS. 6 to 10, the opening draining member 26 is formed by bending a horizontally long steel plate in a deformed stepped shape in the longitudinal direction, and a first vertical surface 26 a disposed in the lower portion and an intermediate portion A second vertical surface 26b disposed in the portion, a third vertical surface 26c disposed in the upper portion, a first horizontal surface 26d disposed between the first vertical surface 26a and the second vertical surface 26b, and a second The second vertical surface is formed of a second horizontal surface 26e disposed between the vertical surface 26b and the third vertical surface 26c, and is erected from the first horizontal surface 26d that covers the ventilation layer of the outer wall panel PS on the lower floor. An appropriate number of dehumidifying holes 27 are formed in 26d.

  As shown in FIG. 10, the dehumidifying hole 27 is formed by partially cutting the middle upper part of the second vertical surface 26b toward the indoor side, as shown in FIG. The ventilation of the ventilation layer of the outer wall panel PS on the lower floor is not obstructed, while the water drops falling from the ventilation layer on the upper floor are led to the joint between the panels through the first horizontal plane 26d. Therefore, it is possible to prevent water droplets from turning on the window while ensuring a predetermined ventilation performance.

  The draining member 26 for opening is set at the upper end of the outer wall panel P provided with an opening such as a window when the outer wall panel P is manufactured. The remaining configuration of the opening draining member 26 is the same as that of the non-opening draining member 22.

  The fibrous heat insulating material 30 is, for example, glass wool, and is set on the main body divided body 12 at the factory using the heat insulating material holding material 14 after the main body divided body 12 is manufactured.

  Next, the construction of the interstitial structure K having such a configuration will be described with reference to FIGS.

  Procedure 1: The left side main body divided body 12L on which the fibrous heat insulating material 30 is set is set in the interstitial part M. That is, the clip 13 clips the lower end portion of the upper thermal insulation DU on the upper floor (see FIG. 12), and the lower end portion is a drainage member on the lower floor (in the illustrated example, a non-opening drainage member 22). ) Screw the appropriate part in the state where it is in contact with 20. This set can be easily made even if there are some unevenness in the interstitial part M, for example, bolts and nuts in the beam B, because the heat insulating material 30 is in a fibrous form. When the receiving tool 15 is provided, the center of the receiving tool 15 is set in accordance with the module core C.

  Procedure 2: The right body divided body 12R on which the fibrous heat insulating material 30 is set has its left end positioned at the right end of the left main body divided body 12L and the position where the left main body divided body 12L of the right body divided body 12R is overlapped. The right-side main body divided body 12R and the left-side main body divided body 12L are joined to each other (see FIG. 14), and the lower end is a draining member on the lower floor (in the illustrated example, the draining member 26 for opening). As shown in FIG. 15, the portion is screwed as appropriate. That is, the main body divided body 12 is joined counterclockwise.

  In addition, as shown in FIG. 16, the back surface of the place overlapped with the left main body divided body 12L of the right main body divided body 12R, the back surface of the place brought into contact with the draining member 20, and the draining member 20 of the left main body divided body 12L A water-stop material made of synthetic resin is affixed to the back surface of the portion to be brought into contact as shown by the hatched lines in the figure.

  Procedure 3: Set the corner member 18 in the corner portion. In other words, one end of the corner member 18 is overlapped with the right end of the right main body division body 12R on one side (in the illustrated example, the south side), while the other side (in the illustrated example, the east side). The other end portion of the corner member 18 is overlapped with the left end portion of the left main body divided body 12L, and the overlapped portion is screwed and joined (see FIG. 17). Thereby, the interstory member 10 is formed.

  As shown in FIG. 18, the rear surface of the corner member 18 overlapped with the right end portion of the right main body divided body 12R and the rear surface of the portion overlapped with the left end portion of the left main body divided body 12L are hatched in the drawing. As shown in Fig. 1, a water stop material made of synthetic resin is attached.

  Procedure 4: Set the decorative body difference 40 on the outside of the interstory member 10. This set is made in the same manner as before (see FIG. 19). In addition, the code | symbol 41 in a figure shows a sealing receipt.

  Thereby, construction of the interstitial structure K is completed.

  As described above, according to the first embodiment, the interstory member 10, more specifically, since the fibrous heat insulating material 30 is set in advance in the main body divided body 12, the attachment of the interstitial member 10 is completed. At the same time, the interstices M can be filled with a heat insulating material. Therefore, the construction can be simplified and the construction period can be shortened, and the cost can be reduced. Moreover, since the right side main body divided body 12R and the left side main body divided body 12L are overlapped and the overlapped portions are screwed and joined, an individual joining member can be dispensed with, and the cost can be further reduced. .

Embodiment 2
An interstory structure according to Embodiment 2 of the present invention is shown in FIGS.

  The second embodiment is a modification of the first embodiment, and is an interstitial structure K1 in which a through part for allowing the drain pipe Q from the balcony to pass through is provided in the interstory part M. The remaining configuration of the second embodiment is the same as that of the first embodiment.

  Hereinafter, the difference between the second embodiment and the first embodiment will be mainly described.

  As shown in FIG. 20, the main body divided body 12 is provided with a guide pipe (guide member) 16 for guiding the penetration of the drain pipe Q.

  Although the guide pipe 16 is not clearly shown, the end portion on the indoor side has a trumpet shape so that the drain pipe Q can be inserted easily. In addition, an inner seal member 16a that seals the drain pipe Q inside the outdoor end portion of the guide pipe 16 and that backs up the sealant 42 that seals the through portion of the drain pipe Q of the decorative barrel difference 40 is mounted. On the outer side, an outer seal member 16b is mounted which serves as a backup for the sealant that seals the through portion of the drain pipe Q having the decorative barrel difference 40. The inner seal member 16a and the outer seal member 16b may be mounted at the construction site, but are preferably mounted in advance at the factory.

  Thus, according to the second embodiment, the guide pipe 16 is provided in the main body divided body 12 so as to pass through the drain pipe Q, so that the drain pipe can be changed without changing the basic form of the main body divided body 12. Penetration such as Q can be made. Therefore, an unnecessary increase in the number of parts is avoided.

Embodiment 3
An interstory structure according to Embodiment 3 of the present invention is shown in FIGS.

  The third embodiment is a modification of the first embodiment, and has an interstitial structure K2 in which a ventilation hood 50 is disposed in the interstitial part M. The remaining configuration of the third embodiment is the same as that of the first embodiment.

  Hereinafter, the points of the third embodiment different from the first embodiment will be mainly described.

  As shown in FIG. 22, the main body divided body 12 includes a ventilation hood body 51 having a fireproof damper 52 at the base end, and an indoor duct having an opening 54 a below the upper flange of the beam B that is located above the opening for the ventilation hood. 54 is attached.

  The ventilation hood opening provided in the main body divided body 12 is adjusted so as not to hinder the opening and closing of the fire damper 52.

  The indoor duct 54 has a deformed L-shape with a rectangular cross section, and the bottom surface 54b has an upward slope toward the indoor side to prevent the bottom surface 54b from interfering with the lower flange of the beam B. . Further, the overhang to the indoor side is adjusted so as not to hinder the opening and closing of the fire damper 52.

  Thus, according to Embodiment 3, since the ventilation hood main body 51 is mounted on the main body divided body 12, the ventilation hood 50 can be provided without changing the basic form of the main body divided body 12. . Therefore, an unnecessary increase in the number of parts is avoided.

  Moreover, since the opening 54a of the indoor duct 54 is provided below the upper flange of the beam B, which is located above the opening for the ventilation hood, water droplets blown from the ventilation hood 50 are prevented from entering the room.

  The present invention can be applied to a floor portion of an outer wall.

It is a principal part perspective view of the floor structure of the outer wall which concerns on Embodiment 1 of this invention. It is longitudinal direction sectional drawing of the non-opening part of the same floor structure. It is longitudinal direction sectional drawing of the opening part of the same floor structure. It is a horizontal sectional view around the module core of the outer wall structure. It is a perspective view of the draining member for non-opening of the floor structure of the outer wall concerning Embodiment 1 of the present invention. It is a perspective view of the draining member for opening of the structure between the floors. It is the sectional view on the AA line of FIG. It is the BB sectional drawing of FIG. 5 and FIG. It is CC sectional view taken on the line of FIG. 5 and FIG. It is the DD sectional view taken on the line of FIG. It is function explanatory drawing of a dehumidification hole. It is explanatory drawing which shows the construction procedure of the interstitial structure which concerns on Embodiment 1 of this invention, Comprising: The state which set the left side main body division body in the interstory part is shown. It is explanatory drawing which shows the construction procedure of the interstitial structure which concerns on Embodiment 1 of this invention, Comprising: It overlaps with the left side main body division body, and the state which set the right side main body division body in the interstory part is shown. It is explanatory drawing which shows the construction procedure of the interstitial structure which concerns on Embodiment 1 of this invention, Comprising: The state which has screwed the overlap part of a left side main body division body and a right side main body division body is shown. It is explanatory drawing which shows the construction procedure of the interstitial structure which concerns on Embodiment 1 of this invention, Comprising: The state which has screwed the lower end part of the right side main body division body is shown. It is the schematic which shows the sticking location of the water stop material in the right side main body split body and left side main body split body of the interstitial structure which concerns on Embodiment 1 of this invention. It is explanatory drawing which shows the construction procedure of the interstitial structure which concerns on Embodiment 1 of this invention, Comprising: The state which has set the corner member is shown. It is the schematic which shows the sticking location of the water stop material in the corner member of the interstory structure which concerns on Embodiment 1 of this invention. It is explanatory drawing which shows the construction procedure of the interstitial structure which concerns on Embodiment 1 of this invention, Comprising: The state which has set the decorative body difference is shown. It is longitudinal direction sectional drawing of the interstitial structure which concerns on Embodiment 2 of this invention. It is AA sectional view taken on the line of FIG. It is longitudinal direction sectional drawing of the interstory structure which concerns on Embodiment 3 of this invention. It is the BB sectional view taken on the line of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Interstory member 11 Main body 12 Main body division body 13 Clip 14 Heat insulating material holding material 15 Receiver 16 Guide pipe 18 Corner member 20 Draining member 22 Non-opening draining member 23 Vent hole 26 Opening draining member 27 Dehumidification hole 30 Fibrous Thermal insulation 40 Cosmetic body difference 50 Ventilation hood 51 Ventilation hood main body 52 Fireproof damper 54 Indoor duct K Floor structure M Interfloor part P Outer wall panel D Outer insulation panel C Module core J Main body joint

Claims (12)

An interstory structure of an outer wall comprising an interstory member that drains water between floors, a drainer member disposed at a lower portion of the interstory member, and a heat insulating material that insulates interstitial parts,
The interstory member includes a main body formed of a divided body formed by bending a plate, and a corner member formed by bending the plate,
The draining member includes a draining member for non-opening formed by bending a plate, and a draining member for opening formed by bending a plate,
The floor structure of the outer wall, wherein the heat insulating material is a fibrous heat insulating material and is set on the back surface of the divided body.   The floor structure of the outer wall according to claim 1, wherein the divided body is provided with a clamping mechanism that clamps a lower end portion of the outer heat insulating material on the upper floor.   The floor structure of the outer wall according to claim 1, wherein the divided body includes a guide member that guides penetration of a pipe that penetrates the floor portion.   The floor structure of the outer wall according to claim 3, wherein an inner seal member and / or an outer seal member is disposed at an outdoor end portion of the guide member.   The floor structure of an outer wall according to claim 1, wherein the divided body includes an opening for a ventilation hood for mounting the ventilation hood, and an indoor duct having an opening above the opening for the ventilation hood. .   2. The floor of the outer wall according to claim 1, wherein the draining member for non-opening has a surface that covers the upper end of the ventilation layer of the outer wall panel of the lower floor, and the surface is provided with a vent hole. Interstructure.   The opening draining member has an upright surface that stands up from a surface that covers the upper end of the ventilation layer of the outer wall panel on the lower floor, and is provided with a dehumidifying hole in the upright surface. The interstory structure of the outer wall according to claim 1.   The floor structure of an outer wall according to claim 1, wherein the main body is formed by overlapping and joining the ends of the divided bodies.   The floor structure of the outer wall according to claim 1, wherein a water stop material is disposed in a predetermined range on the rear surface of the divided body.   The floor structure of the outer wall according to claim 1, wherein a water stop material is disposed in a predetermined range on the rear surface of the corner member. In the construction method of the interstitial structure of the outer wall comprising the interstitial member draining the interstitial part, the draining member disposed in the lower part of the interstitial member, and the heat insulating material insulating the interstitial part There,
The division of the main body in which the fibrous heat insulating material is set on the back surface of the interstices on one side of the outer wall is set on the interstices while sequentially superposing the superposition direction of the end portions as a constant direction, and the overlapping Joining the mated ends; and
While separating the main body divided body in which the fibrous heat insulating material is set on the back surface on the back surface of the other surface intersecting with the one surface, the overlapping portions of the end portions are aligned in the predetermined direction, and then the floor portion. And a step of joining the overlapped end portions;
A step of superimposing and joining one end portion of the corner member to the end portion of the split body on the one surface, and joining the other end portion of the corner member to the end portion of the split body of the surface. A construction method of an interstitial structure of an outer wall characterized by including.   12. The outer wall according to claim 11, wherein the divided body has a receiving member for receiving the fibrous heat insulating material at a lower portion of one end portion, and the divided body is set so that the center of the receiving member coincides with the module core of the outer wall. Construction method of the interstitial structure.

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